/Engine/Source/Editor/ContentBrowserData/Public/ContentBrowserDataSource.h
Attempt to retrieve the identifier that should be used when storing a reference to the given item within a collection.
True if the ID was retrieved, false otherwise.
virtual bool TryGetCollectionId ( const [FContentBrowserItemData](API\Editor\ContentBrowserData\FContentBrowserItemData) & InItem, [FSoftObjectPath](API\Runtime\CoreUObject\UObject\FSoftObjectPath) & OutCollectionId )